Design of an adsorbent employing activated carbon fiber to remove lead

Detalhes bibliográficos
Autor(a) principal: Cárdenas-López,C.
Data de Publicação: 2007
Outros Autores: Camargo,G., Giraldo,L., Moreno-Piraján,J.C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Eclética Química
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702007000300009
Resumo: Zorflex® activated carbon fibers (ACF), reference FM100 198B, are used before and after an oxidizing procedure with H3PO4 to study the adsorption of Pb2+. The point of zero charge was determined for the modified and unmodified fiber giving values of 2.3 and 4.3, respectively. After oxidizing the ACF, the fiber showed to have a greater Pb2+ adsorption capacity in comparison with the unmodified fiber, which is related with the acid sites increase, where lead was mainly adsorbed. Determination of the BET area was carried out by nitrogen physisorption at 77K. ACFs presented superficial areas between 1000 and 1500 m²/g showing mostly, a microporous structure. The preliminary design of an adsorbent using the modified fiber is presented where the fiber superior physicochemical properties over the unmodified one are observed.
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spelling Design of an adsorbent employing activated carbon fiber to remove leadisothermsactivated fibersadsorbention Pb2+Zorflex® activated carbon fibers (ACF), reference FM100 198B, are used before and after an oxidizing procedure with H3PO4 to study the adsorption of Pb2+. The point of zero charge was determined for the modified and unmodified fiber giving values of 2.3 and 4.3, respectively. After oxidizing the ACF, the fiber showed to have a greater Pb2+ adsorption capacity in comparison with the unmodified fiber, which is related with the acid sites increase, where lead was mainly adsorbed. Determination of the BET area was carried out by nitrogen physisorption at 77K. ACFs presented superficial areas between 1000 and 1500 m²/g showing mostly, a microporous structure. The preliminary design of an adsorbent using the modified fiber is presented where the fiber superior physicochemical properties over the unmodified one are observed.Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP2007-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702007000300009Eclética Química v.32 n.3 2007reponame:Eclética Químicainstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESP10.1590/S0100-46702007000300009info:eu-repo/semantics/openAccessCárdenas-López,C.Camargo,G.Giraldo,L.Moreno-Piraján,J.C.eng2007-11-26T00:00:00Zoai:scielo:S0100-46702007000300009Revistahttp://revista.iq.unesp.br/ojs/index.php/ecletica/PUBhttps://revista.iq.unesp.br/ojs/index.php/ecletica/oaiecletica@ctrlk.com.br||ecletica@iq.unesp.br1678-46181678-4618opendoar:2007-11-26T00:00Eclética Química - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)false
dc.title.none.fl_str_mv Design of an adsorbent employing activated carbon fiber to remove lead
title Design of an adsorbent employing activated carbon fiber to remove lead
spellingShingle Design of an adsorbent employing activated carbon fiber to remove lead
Cárdenas-López,C.
isotherms
activated fibers
adsorbent
ion Pb2+
title_short Design of an adsorbent employing activated carbon fiber to remove lead
title_full Design of an adsorbent employing activated carbon fiber to remove lead
title_fullStr Design of an adsorbent employing activated carbon fiber to remove lead
title_full_unstemmed Design of an adsorbent employing activated carbon fiber to remove lead
title_sort Design of an adsorbent employing activated carbon fiber to remove lead
author Cárdenas-López,C.
author_facet Cárdenas-López,C.
Camargo,G.
Giraldo,L.
Moreno-Piraján,J.C.
author_role author
author2 Camargo,G.
Giraldo,L.
Moreno-Piraján,J.C.
author2_role author
author
author
dc.contributor.author.fl_str_mv Cárdenas-López,C.
Camargo,G.
Giraldo,L.
Moreno-Piraján,J.C.
dc.subject.por.fl_str_mv isotherms
activated fibers
adsorbent
ion Pb2+
topic isotherms
activated fibers
adsorbent
ion Pb2+
description Zorflex® activated carbon fibers (ACF), reference FM100 198B, are used before and after an oxidizing procedure with H3PO4 to study the adsorption of Pb2+. The point of zero charge was determined for the modified and unmodified fiber giving values of 2.3 and 4.3, respectively. After oxidizing the ACF, the fiber showed to have a greater Pb2+ adsorption capacity in comparison with the unmodified fiber, which is related with the acid sites increase, where lead was mainly adsorbed. Determination of the BET area was carried out by nitrogen physisorption at 77K. ACFs presented superficial areas between 1000 and 1500 m²/g showing mostly, a microporous structure. The preliminary design of an adsorbent using the modified fiber is presented where the fiber superior physicochemical properties over the unmodified one are observed.
publishDate 2007
dc.date.none.fl_str_mv 2007-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702007000300009
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702007000300009
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-46702007000300009
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP
publisher.none.fl_str_mv Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP
dc.source.none.fl_str_mv Eclética Química v.32 n.3 2007
reponame:Eclética Química
instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Eclética Química
collection Eclética Química
repository.name.fl_str_mv Eclética Química - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
repository.mail.fl_str_mv ecletica@ctrlk.com.br||ecletica@iq.unesp.br
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